Practice like it is real. Risk nothing while you do.
A practice slot gives your plan a simulated account that trades against live market prices. It buys, it sells, it wins and loses, and not one real dollar is ever in the room.
Practice account · no real cash
$10,213
simulated · $5,476 invested · $4,737 waiting
since it started
+$213
Holdings
- AAPL6 shares$1,318+4.2%
- JNJ8 shares$1,276+1.1%
- NKE11 shares$842-2.6%
- MSFT3 shares$1,301+3.5%
Waiting for Monday’s open: buy 5 shares of PG. The plan placed this order after Friday’s review.
The history test proves the past. The practice slot proves the present.
A backtest tells you how your plan would have handled the last five years. A practice slot tells you how it handles this week: the earnings surprise this Tuesday, the red Friday nobody saw coming. Both answers matter before real cash gets involved.
While the plan practices, you learn your own reactions too. Watching a simulated account dip 8% teaches you, at zero cost, whether you can stomach the strategy you designed.
Practice account · no real cash
$10,213
simulated · $5,476 invested · $4,737 waiting
since it started
+$213
Holdings
- AAPL6 shares$1,318+4.2%
- JNJ8 shares$1,276+1.1%
- NKE11 shares$842-2.6%
- MSFT3 shares$1,301+3.5%
Waiting for Monday’s open: buy 5 shares of PG. The plan placed this order after Friday’s review.
One plan · three versions · practice cash
Your version 2leading
ahead after six weeks
$10,412
+4.1%
Steadier settings
smaller swings, fewer trades
$10,208
+2.1%
Faster settings
trades more, paying more fees
$9,924
-0.8%
Keep the one the market agrees with. Retire the rest with a tap.
Run a few versions of your plan side by side. Keep the one that earns it.
One version of a plan cannot tell you much by itself. So Stax lets you deploy several versions of your own plan at once, each in its own slot: the careful one, the busier one, the one the tuner suggested. All of them trade the same market with the same starting cash.
A few weeks later the standings are not a matter of opinion. You keep the version that held up, retire the rest, and nothing about the tryout cost you anything.
How the engine tunes versionsFrom tested plan to running practice
Getting a plan onto paper takes about a minute. Here is the whole path.
Pick the version you trust
Any plan that passed the history test can deploy. If you tuned it, each candidate version shows its full test record first, so you choose with the evidence open.
It gets its own simulated account
The slot starts with simulated cash and nothing else. Every order it places from then on fills at real market prices, with trading fees subtracted, exactly like the test assumed.
You watch it live from your phone
The slot shows its value, its holdings, and each trade with the rule that caused it. Good weeks and bad weeks both count, because a tryout you only watch while it is winning tells you nothing.
Graduating stays your call
Nothing ever escalates on its own. A practice plan keeps practicing until you retire it, replace it, or, on the highest tier, deliberately connect a real brokerage account yourself.
Room to try things properly
- 6
- practice slots free, each with its own simulated account
- $0
- of real cash at risk while a plan practices
- Live
- market prices behind every simulated fill
Simulated results track real prices closely, but a practice fill is not a real fill. Treat paper performance as a rehearsal, never as a record.
Questions people ask
Is the simulated cash trading real prices?
Yes. Orders fill against live market data, fees are subtracted, and a stock that gaps down hits your practice account the way it would hit a real one. The only thing missing is the actual dollars.
How many plans can I run at once?
Six slots come free, and each slot holds one running plan with its own account. Pro raises that to twenty and Elite to sixty, which is what makes side-by-side version tryouts practical.
What is the point of running several versions of the same plan?
Because tuning produces candidates, not certainties. Letting three or four versions trade the same weeks settles the argument with evidence: one of them handles the present best, and the standings show you which.
Does a good month on paper mean I should go live?
Not by itself. One good month can be luck. A plan that passed the history test and then handled a few real months of practice gives you a much better reason to trust it. When you do feel ready, connecting a brokerage is its own deliberate step, and it stays one plan to one account.
Give your plan a tryout that cannot cost you anything.
Six free slots, each trading simulated cash at live market prices, with every trade explained. Real dollars stay out of it until you say otherwise.